Pyridine → methyl 6-fluoro-2-oxo-2,3-dihydro-1H-indole-5-carboxylate

HRID 44300Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 44300
ClCC([C:5]1[CH:6]=[C:7]2[C:11](=[CH:12][C:13]=1[F:14])[NH:10][C:9](=[O:15])[CH2:8]2)=O.N1C=CC=C[CH:17]=1.[C:22](=[O:25])([O-])[O-:23].[K+].[K+].Cl.O1CCOCC1>>[F:14][C:13]1[CH:12]=[C:11]2[C:7]([CH2:8][C:9](=[O:15])[NH:10]2)=[CH:6][C:5]=1[C:22]([O:23][CH3:17])=[O:25]

Komponenten

5

Edukt 4

HCID 1049PyridineHCID 11430Potassium CarbonateHCID 106093595-(2-Chloroacetyl)-6-fluoroindolin-2-oneHCID 204431481,4-Dioxane hydrochloride

Produkt 1

HCID 66636241methyl 6-fluoro-2-oxo-2,3-dihydro-1H-indole-5-carboxylate

Versuchsvorschrift

A solution of the compound obtained in Step A (3.24 mmoles) in pyridine (99 mmol) is stirred at 90° C. for 2 hours. The reaction mixture is cooled to ambient temperature and then filtered. The solid obtained is washed with ethanol and dried in vacuo at 50° C. The compound is dissolved in MeOH (80 mL), and 0.434 mmol of potassium carbonate is added. The mixture is stirred at 80° C. for 5 hours. After cooling to ambient temperature, 4M HCl/dioxane solution is added (pH 3) and the mixture is evaporated to dryness. The residue obtained is triturated in water, filtered, washed with water and then dried in vacuo at 50° C. to yield the title product.

Aufarbeitung

  1. filtrationfiltered
  2. customThe solid obtained
  3. washis washed with ethanol
  4. customdried in vacuo at 50° C
  5. dissolutionThe compound is dissolved in MeOH (80 mL)
  6. temperatureAfter cooling to ambient temperature
  7. customthe mixture is evaporated to dryness
  8. customThe residue obtained
  9. customis triturated in water
  10. filtrationfiltered
  11. washwashed with water
  12. customdried in vacuo at 50° C.

Quellen und Nachweise

ORD-Eintrag
ord-706bf211ee9e46b69831864a50a4c124
Quelldatensatz
uspto-grants-2013_09
Patentnummer
US08541412B2

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